12,697 research outputs found
Females of two subspecies of mice differ in their urinary volatile profile
No full textMice recognize other mice by identifying chemicals that confer a molecular signature to urinary marks. Such molecules may be involved in species recognition, and previous behavioral studies have related divergence of sexual preference between 2 subspecies of the house mouse (Mus musculus musculus and Mus musculus domesticus) to urinary odors
Urinary volatile molecules vary in males of the 2 european subspecies of the house mouse and their hybrids
No full textMice recognize other mice by identifying chemicals that confer a molecular signature to urinary marks. Such molecules may be
involved in species recognition, and previous behavioral studies have related divergence of sexual preference between 2 subspecies
of the house mouse (Mus musculus musculus and Mus musculus domesticus) to urinary odors. To characterize the differences
between odors of males of the 2 subspecies and their first-generation offspring, the urinary volatile molecules were examined via
gas chromatography coupled to mass spectrometry. Seven molecules were present in the samples from mice of at least one group.
Their quantity varied among groups: M. m. domesticus showed a quantitatively richer panel of odorants in their urine when
compared with M. m. musculus. The hybrids showed a more complex picture that was not directly related to one or the other
parental subspecies. These quantitative differences may contribute to the specificity of the odorant bouquet of the 2 subspecies
MABS validation through repeated execution and data mining analysis
No full textAgent Based Modelling is the most interesting and advanced approach for simulating a complex system: in a social context, the single parts and the whole are often very hard to describe in detail. Besides, there are agent based formalisms which allow to study the emergency of social behaviour with the creation and study of models, known as artificial societies. Thanks to the ever increasing computational power, it's been possible to use such models to create software, based on intelligent agents, which aggregate behaviour is complex and difficult to predict, and can be used in open and distributed systems. Data mining is born in the last decades in order to help users in finding useful knowledge from the otherwise overwhelming amount of data available nowadays from the web and the data collected every day by companies. Data Mining techniques can therefore be the keystone to reveal non-trivial knowledge expressed by the initial assumption used to build the micro-level of the model and the structure of the society of agents that emerged from the simulation
The genetic architecture of chemosensory cues involved in species recognition: a behavioral approach in the house mouse.
No full textInternational audienceThe genetics of chemical signals is poorly understood. We addressed this issue in two subspecies of mice, Mus musculus musculus and M. m. domesticus, comparing their odor phenotypes with that of their hybrids. Earlier studies indicated that these subspecies could be discriminated on the basis of their urinary odor. We assessed male odor phenotypes from perception of musculus mice acting as olfactometers. Our results point to a complex genetic determinism. Reciprocal F1 hybrids produced a distinct odor phenotype, with shared characteristics distinguishing them from their parents, and stronger similarity to domesticus than to musculus. These results are consistent with implications of genes with partial dominance and a parent of origin effect. Further, similarities between reciprocal F2 allowed us to reject a direct role of the Y-chromosome in shaping the odor phenotype. However we show that the X-chromosome could be involved in explaining domesticus phenotype, while epistasis between genes on the sex chromosomes and the autosomes might influence musculus phenotype
Facades of the Libreria di San Marco in Venice, The: An Interpretation of the Design Process
No full text"A new work in which I propose an interpretation of the design process Sansovino used to create the magnificent facades of the Libreria di San Marco in Venice, a masterpiece of Renaissance architecture." Sent to Marquand librarian by author Dec. 202
Art without an Author: Vasari’s Lives and Michelangelo’s Death
No full textMonografia sulla rappresentazione di Michelangelo nelle due edizioni delle Vite, sulla storia del libro e la questione della sua paternitàBook dedicated to the representation of Michelangelo in Vasari's Lives of the Artists, to the history of the book, and to the problem of its authorshi
Habituation-Discrimination/Generalisation tests
No full textBehavioural data of discrimination tests between two urinary stimuli placed on two sides of a box, after habituation to an other urinary stimulus. Data are time spent (in seconds) in contact with each stimulus, recorded in laboratory with the Observer 5.0 software. Information about the tested mice and the stimuli are present, as well as references to the sections of the article referring to each test
131120 choice test data
No full textBehavioural data of simultaneous choice tests between two urinary stimuli at the end of the branches of a Y maze. Data are time spent (in seconds) in the neutral part, on each branch, and in contact with each stimulus, recorded in laboratory with the Observer 5.0 software. Information about the tested mice and the stimuli are present, as well as references to the sections of the article referring to each test
How to prevent crimes using earthquakes
No full textIn this chapter the author describes how techniques coming from earthquakes prediction has been used to produce successful mathematical models useful in preventing crimes
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